Ball-cock.



G. B. MO0RE & A. J. PRATT. BALL COCK.

APPLXCATION FILED MAY 13, 19l3-' 1,140,054. Patented May 18, 1915.

1.v VENTOR;

IVITNESSES:

. ATTORNEY.

THE lfORRIS PE'TERS C0 PHOTO-LITHCL, WASHINGTON. D. C.

UNITEDSTATES mmm wm GEORGE B. MOORE AND AUSTIN J'. PRATT, OF SPRINGFIELD, MASSACHUSETTS.

BALL-COCK.

To all whom it may concern:

Be it known that we, GEORGE-B. MOORE and AUSTIN J. PRATT, both citizens of the United States of America, and residents of Springfield, in the county of Hampden and State of Massachusetts, have invented certain new and useful Improvements in Ball Cocks, of which the following is a full,

clear, and exact description.

This invention relates to ball cocks or valves such, for instance, as the kind illustrated and described in Letters Patent of the United States issued May .14, 1901, No.

" 674,276, to G. B. Moore, herein named.

'Ball cocks, as well known, are in many cases employed in water closet .tanks in which when the tank valve is opened the discharge of the water from the tank through the pipe to the water closetbowl is insured by siphonic action. The outdrawing ofthe water fromthe tank, as "usual, causes the lowering of the ball float which controls the ball cock so that the latter is opened for the inflow of water into and for the refilling of the tank; and in' many cases the inflow of the water through the ball cock into the tank is suflicient to maintain the water level in the tank at a sufiicientheight to preserve V the conditions for the siphonic action so.

that water will for an indefinite period flow into and out from the tank resulting in great waste as well as the annoyance caused by too long running of the water.

One object of this invention is to provide means in the ball cock so that after the tank valve shall have been opened and the water level lowered whereby, as"usual, the ball cock will be opened for the fresh supply of water into the tank, the passage of thewater through the ballcock into the tank will be then very much restricted so that. for a time after the full opening of the J ball cock it will be almost closed with the result that on account of the small amount of Water entering the tank, the water level will be, with certainty, lowered to the ex tent of breaking the siphon, under which conditions the tank valve will close to be followed by the maximum flow of the water through the ball cock and the gradual lessening of the flow until the tankvisrefilled, whereupon, as usual, the ball cock' will be closed and the flow terminated;

A further object of the invention is to Specification of Letters Patent.

Application filed May 13, 1913. Serial No. 757,377.

Patented May 18, 1915.

provide means in the ball cock whereby,

In the drawings :+Figure '1 is a central longitudinal sectional view through the ball cook, the valve proper thereof being shown as in itsfully opened position and the restricting member as in its closing relation to the water passagethrough the cock. Fig. 2 is a view similar to Fig. l but showing the adjustable member so positioned as to render the restricting memberincapable of assuming its-position for a restriction of the flow of water through the cock.

The body of the ball cock'is constituted by the two sections 1 and 2,- thesection 1 having at its end a neck a which has a close fit into thefcylindrical opening in the section 2.

The twosections have external flanges g which are engaged by a constrictive yoke b for holding the sections together withthe 1 interposedpacking substantially as set forth in the aforementioned patent.

The sectionally formed casing has a chamher d therein with which the waterinlet pase sage f is in communication and the casing also has the chamber 9 therein from which the water delivery passage it leads.

Between the chambers d and g is a connecting passage 21 the diameter ofwhich is less than that of either of the said chambers and the ends of the wall of such passage surrounding the mouth thereof form valve seats 9' and 7c. 1 y

The provision of such passage with the valve seats at the ends thereof is made, in

the present instance, by an annular bushing m which is fittedand secured in the casing section 1 and has the end thereof projected more or. less into the chamber d which is surrounded by the ca'sing section 2."

0 represents the valve stem which is 21".

ranged longitudinallywithin the valve'casing, one end thereofprojecting outwardly beyond theend of the caslng through the annular nut 72 and packing 10 and is engaged by an arm 9 of an angular lever to the other arm 7 of which the rod which carries the ball float may be adjustably secured,the said lever arm 9 being by link 9 which is pivoted thereto, pivotally connected at to an upstanding lug at the top of the valve casing all substantially as shown in the aforementioned patent.

The portion of the valve stem which is between the chamber 1) and g is of a diameter considerably less than that of the opening 2' which connects such chambers; and 8 represents the valve proper of the ball cock carried by the valve stem and having its location at the inlet end of the passage 2', and coacting with the valve seat opening at such end, it being understood that when the tank is full and the ball float consequently elevated, the valve 8 will be seated and operable to close any flow of water from the inlet chamber cZ through the passage 2" for delivery into the tank.

t is a member carried by, and preferably formed as a part of the valve stem within the chamber 9 and properly positioned for coaction with the mouth of the passage 71 at the outlet end thereof.

This member 6 is shown as of substantially frusto-conical form, and under the maximum range of operation of the floatcarrying and valve-stem-operating lever is brought, when the valve 8 is moved to its most widely opened position relatively to the valve seat j, into proximate relation to the mouth end k of the passage 2', for greatly restricting the flow or passage of water from the inlet chamber to the delivery passage of the valve. 7 I

It will be stated that the seating portion of the valve 8, in practice, is composed of rubber,or in any event the valve proper, s, is so constructed for its cooperation with the valve seat j that when the valve proper is closed the flow of water through the cock will be entirely prevented; but it is to be especially understood that the valve like member t, by its nature, form or construction, is to be of such character that some water, when the valve proper is opened, may be forced through the passage c' for delivery through the ball cock. The most simple, inexpensive and satisfactory practice is to leave the frusto-conical member t, which is produced as a part of the valve stem by casting in brass, unfinished, that is left rough with the indentations or sand pits remaining therein, for when this part is so made and even when forced with considerable pressure aganist the month end at the outlet of the passage 2', a considerable, though proportionately much reduced quantity of water may pass through the cock. Now assuming this ball cock is used in a watercloset tank in which in conjunction with the tank valve a siphon outlet pipe is employed, it will be understood that on the opening of the tank valve the water will be exhausted from the tank by siphonic action which will continue until the water has become exhausted from the tank to such an extent as to cause the breaking of the siphon whereby the flow of water from the tank is expected to stop. Now when the water is very much lower in the tank so as to widely open the valve 8 of the ball cook, but before the water has become lowered sufliciently to cause a breaking of the siphon, the inflow of water into the tank through the ball cock would, under many conditions, be suflicient for the maintenance of the water at a sufficient height to preserve the siphon and result in a continued inflow and outflow of water indefinitely; but by the restriction for a period after the valve proper has been fully opened, by the bringing of the valve-like member If to its partially closing relation to the adjacent mouth of the passage ?I, the inflow of the water is temporarily much checked, so that the siphon may assuredly be broken; then after the closing of the tank valve the water rising in the tank as permitted by what may in a sense be regarded as a copious leakage past the restricting member t, will with suflicient promptness cause such an endwise movement of the valve stem as to carry the member 25 free and clear from the valve seat opening is so that the ball cock becomes operative, in the manner of ordinary ball cocks, to secure rapid inflow into the tank to result in the'final closing of the cock.

As these ball cocks are to be made up in stock for distribution for employment in water-closet tanks, in which gravity, or slow closing, tank valves are used which are of a character distinguished from any operating in conjunction with a siphonage pipe, it becomes desirable to provide adjustable means whereby in such cases the ball cock may be employed without the capability of the valve-like member 6 ever attaining its water restricting relation to the mouth end of the passage 2'; and to this end the stop screw u is provided as an adjustable appurtenance to the valve stem operating means. As shown the shank of this stop screw it is screw engaged in a tapped hole therefor which is formed near the elbow of the angular lever 9 When the cock is to be used as represented in Fig. 1 to secure the period of water restriction, as heretofore fully described, this stop screw is positioned closely in relation to the edge of the lever so that the latter may have a maximum of swinging movement; but by positioning the screw in an extended relation, as shown in Fig. 2, the valve stem while capable of all suflicient endwise movement for amply opening the valve proper, s, nevertheless, may

not have such a degree of movement as to bring the member 25 toa choking or obstructing relation to the mouth of the passage 2' which connects the discharge and inlet chambers of the cock. I

The body of the mainvalve is of cylindrical form and has a close'fit in a cylindrical casing a which by being closed forms a vacuum chamber serving in the action-0f the valve to prevent water hammering.

' We claim 1. A ball cock comprising in combination with a casing having a pairof chambers, one having a water inlet and the other a discharge outlet, and a passage formed with valve seats at opposite ends connecting said chambers, of a valve stem having a portion of less diameter than and extending through, the connecting passage; a valve on said rod adjacent the inlet valve-seat end of the connecting passage and coacting therewith; a member on the valve rod at the opposite end of said passage adapted on the opening of the valve to have an approximately closed relation to said opposite end of the passage to restrict the inflow of water, substantially as and for the purpose specified.

2. A ball cock comprising in combination with a casing having a pair of chambers, one having a water inlet and the other a discharge outlet, and a bushing formed with valve seats at opposite ends connecting said chambers, of a valve stem having a portion of less diameter than the internal diameter of and extending through the bushing; a valve on said rod adjacent the inlet valveseat end of the bushing and coacting therewith; a valve member on the valve rod at the opposite end of said bushing adapted on the opening of the valve to have an approximately closed relation to said opposite end of the bushing to temporarily restrict the inflow of the water; means connected to the valve stem externally of the casing to impart endwise movement to the valve stem, and adjustable meanscarried by the valve stem moving means to limit the movement of the valve stem in the opening direction.

3. A ball cock comprising in combination with a casing having a pair of chambers, one having a water inlet and-the other a discharge outlet, and a bushing formed with valve seats at opposite ends connecting said chambers, of a valve stem having a portion of less diameter than the internal diameter of and extending through the bushing; a valve on said rod adjacent the inlet valve seat end of the bushing and coacting therewith; a valve member on the,

valve rod at the opposite end'of said bushing adapted on the opening of the valve to have an approximately closed relation to said opposite end of the bushing to temporarily restrict the inflow of the water; a

lever pivotally connectedto the valve stem externally of the casing and having a link connection with the casing; and a set screw carried by the leveradapted to abut against the casing and cooperate therewith under proper adjustment thereof to limit; the, movement of the valve stem in the opening direction. 1 I

' 4. Aball cock comprising in combination with a caslng having a pair of chambers,-

one having a water inlet and the other chamber a discharge outlet, and .a-bushing in the casing formed with valve seats at opposite ends connecting said. chambers,-of a cylindrical member in the chamber having the water inlet with an open end toward said bushing and closed at its other end; a valve stem having a portion of less diameterthan the internal diameter of and-ex-' member having a sliding fit in the valve casing; and means connected to the valve stem externally of the casing to impart endwise sliding movement to the valve stem.

5. In a ballcock, the combination with a casing having an'inlet, and a water way therethrough connecting with said inlet, said water way being formed with a main valve seat and with a supplemental seat in axial alinement with such main seat, of a valve stem extending within and along the water way and through said valve seats, and of smaller diameter than the openings thereof, and having a valve for positively closing at the main valve seat, and having a valve member for coaction with and to approximately close at the supplemental seat, when the main valve is moved to the maximum of its opening relation to temporarily restrict the inflow of the water, and means externally of the casing for endwise movingthe valve stem.

6. In a ball cook, the combination with a casing having a chamber therein with which a water inlet passage connects, and having another chamber from which a water delivery passageleads, andan annular bushing piece secured in the casing between said chambers and forming the'passage to connect such chambers, the'mouths at the opposite ends of which passage forming valve seats, of a valve stem having a portion thereof smaller in diameter than the passage through said annular bushing and extending through the Same, the valve & 1,14%064 stem having a valve at the inlet end of said means externally 0f the casing for endWise passage coacting with the adjacent seat, and movement of the valve stem. having a valve member at the opposite end Signed by us at Springfield, Mass, in of said assage adantedhon mlovementgn the presence of two subscribing Witnesses. opening direction 0 t e va ve mem er to engage its seat, said latter valve and valve A?}; seat being relatively unsymmetrical whereby upon seating of the valve the inflow of Water Will be temporarily restricted and only a small portion of Water can pass, and

Witnesses:

G. R. DRIsCOLL, WM. S. BELLOWS.

five cents each, by addressing the Commissioner of Patents,

Copies of this patent may be obtained for Washington, D. 0. 

